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A kind of high-strength wear-resistant flame-retardant polypropylene and its preparation method

A flame-retardant polypropylene, high-strength technology, applied in the field of polypropylene, can solve the problems of low wear resistance and low strength of flame-retardant polypropylene, achieve the effects of good heat resistance, high strength and hardness, and improve flame retardant efficiency

Inactive Publication Date: 2016-05-04
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of low wear resistance and low strength of flame retardant polypropylene in the prior art, and provide a compound synergistic effect of modified filler, boron nitride and additives to improve strength and wear resistance Flame-retardant polypropylene and its preparation method

Method used

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  • A kind of high-strength wear-resistant flame-retardant polypropylene and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A high-strength wear-resistant and flame-retardant polypropylene, consisting of 49 parts of polypropylene matrix, 18.2 parts of modified glass fiber with a length of 2mm, 7.8 parts of modified hollow glass microspheres, 1 part of cubic boron nitride, and 7.41 parts of nano-alumina , 12.35 parts of nitrogen-phosphorus flame retardant with a particle size of 3-15 μm, 1.24 parts of white carbon black, 1 part of phosphite antioxidant and 2 parts of dimethyl silicone oil; among them, the modified glass fiber is modified by KH550 Modified glass microspheres are mixed with rare earth modifier and hollow glass microspheres at a weight ratio of 3:100.

[0029] The method for preparing high-strength wear-resistant and flame-retardant polypropylene comprises the following steps: Step 1, take 20ml of KH550, and then dissolve it in 980ml of ethanol to make a volume concentration of 2% KH550 / ethanol solution, then weighed 300g of glass fiber, placed in KH550 / Soak in ethanol solu...

Embodiment 2

[0036] A high-strength wear-resistant and flame-retardant polypropylene, consisting of 46 parts of polypropylene matrix, 14.7 parts of modified glass fiber with a length of 2mm, 6.3 parts of modified hollow glass microspheres, 4 parts of cubic boron nitride, and 7.41 parts of nano-alumina , 12.35 parts of nitrogen-phosphorus flame retardant with a particle size of 3-15 μm, 1.24 parts of white carbon black, 3 parts of phosphite antioxidant and 5 parts of dimethyl silicone oil; among them, the modified glass fiber is modified by KH550 Modified glass microspheres are mixed with rare earth modifier and hollow glass microspheres at a weight ratio of 3:100.

[0037] For the preparation method of high-strength wear-resistant and flame-retardant polypropylene, refer to the preparation steps of Example 1.

Embodiment 3

[0039] A high-strength wear-resistant and flame-retardant polypropylene, consisting of 55 parts of polypropylene matrix, 14 parts of modified glass fiber with a length of 2mm, 6 parts of modified hollow glass microspheres, 2 parts of cubic boron nitride, and 6.35 parts of nano-alumina , 10.59 parts of nitrogen-phosphorus flame retardant with a particle size of 3-15 μm, 1.06 parts of white carbon black, 1 part of phosphite antioxidant and 4 parts of dimethyl silicone oil; among them, the modified glass fiber is modified by KH550 Modified glass microspheres are mixed with rare earth modifier and hollow glass microspheres at a weight ratio of 3:100.

[0040] The preparation method of high-strength wear-resistant and flame-retardant polypropylene, the specific steps are: step 1, take 20ml of KH550, and then dissolve it in 980ml of ethanol to make KH550 with a volume concentration of 2%. / ethanol solution, then weighed 300g of glass fiber, placed in KH550 / Soak in ethanol soluti...

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Abstract

A high-strength wear-resistant flame-retardant polypropylene and its preparation method, comprising 42-55 parts of polypropylene matrix, 20-29 parts of modified filler, 1-4 parts of boron nitride, 18-21 parts of additives, 1-3 parts Composed of phosphite antioxidant and 2~5 parts of simethicone oil, using a high-speed mixer to mix polypropylene matrix, modified filler, boron nitride, additives, phosphite antioxidant and simethicone After uniformity, the mixture is fed into a granulator for granulation, and then the pellets are fed into an injection molding machine to obtain a flame-retardant polypropylene. In the present invention, the addition of various inorganic components improves the fluidity of the polymer and inorganic filler system, improves the toughening effect, does not require the use of compatibilizers, and reduces costs; in the present invention, various additives and glass fibers and The flame retardants are all halogen-free materials, the preparation process is simple, the materials used are cheap, and the comprehensive cost has obvious advantages compared with traditional polypropylene composite materials.

Description

technical field [0001] The invention relates to the field of polypropylene, in particular to a high-strength wear-resistant and flame-retardant polypropylene and a preparation method thereof. Background technique [0002] Due to its excellent mechanical properties, insulation, low density and chemical resistance and other comprehensive properties, polypropylene fibers are widely used in the automotive industry, electrical industry, daily necessities and packaging industries. Laws related to these application fields According to regulations and user requirements, flame retardant processing should be carried out on polypropylene materials. At present, flame retardants are mainly used to flame-retardant polypropylene at home and abroad. However, halogen-containing flame retardants have been banned in many countries because they form corrosive hydrogen halides during combustion and generate a large amount of smoke. [0003] At present, a synergist is usually used to compound ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L83/04C08K13/06C08K9/06C08K7/14C08K7/28C08K3/22C08K3/36C08K3/38B29B9/06B29C45/78
CPCB29B9/06B29C45/76C08K2201/003C08K2201/004C08K2201/011C08L23/12C08L2201/02C08L83/04C08K13/06C08K9/06C08K9/00C08K7/14C08K7/28C08K2003/385C08K2003/2227C08K3/36
Inventor 张炎斌刘继纯魏风军于卓立贾秋丽
Owner HENAN UNIV OF SCI & TECH
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